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- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
Restore accurate combustion monitoring and dependable engine-management operation with this OE Match Knock Sensor. Designed for compatible Porsche applications, the knock sensor monitors engine vibrations associated with abnormal combustion, allowing the engine control unit (ECU) to respond when detonation or engine knock is detected.
Fits:- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
Diagram Ref No 21
During normal operation, the ECU continually adjusts engine parameters to achieve an effective balance between performance, efficiency and engine protection. The knock sensor plays an important role in this process by detecting characteristic vibration frequencies produced when combustion does not occur as intended.
When knock is detected, the ECU can adjust ignition timing and other applicable operating parameters to reduce detonation. This helps protect internal engine components from the excessive pressure and temperature associated with prolonged engine knock.
A faulty knock sensor may provide an incorrect, intermittent or missing signal. This can trigger an engine-management warning and may cause the ECU to adopt more conservative ignition settings, potentially resulting in reduced performance or efficiency.
This OE Match Knock Sensor provides a high-quality replacement for a defective or damaged original sensor, helping restore accurate knock detection and correct engine-management response.
What This Product Does:
- Detects engine vibrations associated with detonation or abnormal combustion.
- Sends combustion vibration information to the ECU.
- Helps the engine-management system identify engine knock.
- Allows ignition timing to be adjusted when knock is detected.
- Helps protect internal engine components from damaging detonation.
- Supports optimum ignition timing under changing operating conditions.
- Helps maintain smooth and efficient combustion.
- Supports consistent engine performance and throttle response.
- Allows the ECU to adapt appropriately to engine load and operating conditions.
- Replaces a failed, damaged or unreliable knock sensor.
- Provides an OE Match alternative for compatible Porsche applications.
Symptoms Of Wear Or Failure:
- Check engine or engine-management warning light.
- Knock sensor-related diagnostic trouble codes.
- Reduced engine power. Sluggish acceleration.
- Poor or inconsistent throttle response.
- Engine entering a reduced-performance or protective operating strategy.
- Increased fuel consumption.
- Rough or inconsistent engine operation.
- Audible pinging or knocking during acceleration.
- Knock particularly noticeable under heavy engine load.
- Intermittent engine-management warnings.
- Damaged knock sensor wiring or connector.
- Diagnostic testing showing an implausible, intermittent or missing sensor signal.
Why Replacement Matters:
- Engine knock or detonation occurs when combustion inside the cylinder becomes abnormal, creating uncontrolled pressure waves rather than the intended smooth combustion process.
- Persistent detonation can expose pistons, bearings, cylinder walls and other internal engine components to increased mechanical and thermal stress. Severe or prolonged knock can potentially contribute to expensive internal engine damage.
- The knock sensor helps prevent this by giving the ECU the information needed to identify abnormal combustion and make appropriate ignition adjustments.
- If the sensor fails or sends unreliable information, the ECU may no longer be able to determine accurately whether knock is occurring. Depending on the engine-management strategy, it may compensate by using conservative ignition timing to provide additional engine protection.
- While this can reduce the risk of damage, it may also result in reduced power, poorer throttle response and increased fuel consumption.
- A defective sensor can also create persistent diagnostic faults or warning lights, making it more difficult to identify other genuine engine-management problems.
- Replacing a failed sensor with this OE Match Knock Sensor helps restore accurate combustion monitoring, appropriate ignition control and the engine protection functions built into the management system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95890537700
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